York S1-025-41023-000 Expansion Valve THPU32HP7Y The McDonnell & Miller 157S-A

The McDonnell & Miller 157S-A (Part Number 173702) is a heavy-duty combination low water cut-off and pump controller designed specifically for commercial and industrial steam boiler applications

The 5" probe length provides precise temperature sensing

the Johnson Controls P70AB-2 is strictly a low pressure control

This is a manual reset model

High-Voltage Output: Generates a 20KV peak discharge to bridge electrode gaps even in high-moisture or cold-weather environments

York S1-025-41023-000 Expansion Valve THPU32HP7Y The McDonnell & Miller 157S-AThe York S1 025 41023 000 Expansion Valve is a critical metered flow control component designed for precise refrigerant management in evaporator coil assemblies. Featuring 3 8 X 5 8 ODF solder connections, this Thermostatic Expansion Valve (TXV) is engineered specifically for R 22 systems. As a non adjustable factory set valve, it eliminates the risk of field calibration errors, maintaining optimal superheat levels to protect the compressor from